ambassador and had arrived in libya a week ago. he entered the seals in 1995 and ended his military service ten years later. his family says he was an avid pilot who loved the outdoors. >>> len lived life to the fullest. he was my brother. but if you ask his friends, he was their brother as well. >>> the fourth american killed has been identified is tyrone woods. this is video of his home in imperial beach. he was a navy seal for 20 years and leaves behind a newborn baby and two teenage sons. >> you can continue to follow this story on our website as well at nbcbayarea.com. we'll have complete details including funeral information when it becomes available. >>> the national cathedral in washington, d.c., was packed today for a memorial service for neil armstrong. he died late last month but the memorial service showed tribute to him are far from over. fellow crew members buzz aldrin and michael come linz were among those in the packed cathedral. nasa administrator said armstrong should be remembered for more than just taking human